Click the "Select File" button above, and choose your STUFF file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert STUFF to another file type
To convert STUFF Save files to another format, you need Daigaku Gurashi or other Game software.
Convert a file to STUFF
To convert other file formats to the "Game Configuration File" file type, you need software like Daigaku Gurashi or a similar tool.
About STUFF files
The .STUFF file extension is a generic placeholder format used primarily by independent game developers to store configuration, save states, or asset data without assigning a standard extension. The most common use case (40%) is found in Daigaku Gurashi, a school life simulation game, where the file stores character relationship data. Another significant use (27%) is in the popular Apple Arcade game Sneaky Sasquatch, where it functions as a JSON-formatted save file.
Users typically need to convert or open these files to mod game content, such as altering character traits in Daigaku Gurashi or editing save progress (e.g., currency, inventory) in Sneaky Sasquatch. A major limitation is that operating systems like Windows and macOS do not recognize the extension, often displaying a "Windows cannot open this file" error. Despite the obscure name, these are almost always plain text or JSON data containers.
Best Conversion Targets:
For Editing/Modding: Convert (rename) to JSON or TXT. This allows the file to be opened in code editors like VS Code or basic text editors like Notepad, enabling users to modify game values.
For Backup: Archive as ZIP to compress multiple save states.
Convert.Guru analyzes your STUFF file, detects the exact format, and lets you read the text inside.
Users also converted SIT, CRYSISJMSF, CMBL and CY files.
FAQ
If you want to convert STUFF file to ZIP, RAR, 7Z, TAR, GZ, BZ2, XZ, LZMA, CAB, ACE, ARJ or LHA, you can use Daigaku Gurashi or similar software from the "Game Data Storage" category. In the File menu, look for Save As… or Export….
To convert XXE, 7Z, Z, PAK, LHA, DEB, UUE, TAR, LZH, ZIP, PKG or RAR files to STUFF, try Daigaku Gurashi or another comparable tool in the "Game Data Storage" category.
The STUFF Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our STUFF converter.